History of the Scheme programming language: Difference between revisions

Revision as of 09:32, 19 July 2019

Revision as of 19:15, 7 September 2019

Line 15:

The first complete Lisp compiler, written in Lisp, was implemented in 1962 by Tim Hart and Mike Levin at MIT.<ref name="Levin">{{cite web |url=ftp://publications.ai.mit.edu/ai-publications/pdf/AIM-039.pdf |title=AI Memo 39, The New Compiler |last=Hart |first=Tim |last2=Levin |first2=Mike |access-date=2006-10-13}}</ref> This compiler introduced the Lisp model of incremental compilation, in which compiled and interpreted functions can intermix freely.

The two variants of Lisp most significant in the development of Scheme were both developed at MIT: LISP 1.5<ref>{{cite book |url=httphttps://www.softwarepreservationarchive.org/projectsdetails/LISP/book/LISP%201.5%20Programmers%20Manual.pdflisp15programmer00john |title=LISP 1.5 Programmer's Manual |publisher=[[MIT Press]] |last=McCarthy |first=John |author-link=John McCarthy (computer scientist) |last2=Abrahams |first2=Paul W. |last3=Edwards |first3=Daniel J. |last4=Hart |first4=Timothy P. |last5=Levin |first5=Michael I. |isbn=978-0-262-13011-0 |year=1985 |url-access=registration }}</ref> developed by McCarthy and others, and [[Maclisp]]<ref>{{cite web |url=http://zane.brouhaha.com/~healyzh/doc/lisp.doc.txt |title=Maclisp Reference Manual |date=March 3, 1979 |archive-url=https://web.archive.org/web/20071214064433/http://zane.brouhaha.com/~healyzh/doc/lisp.doc.txt |archive-date=2007-12-14}}</ref> – developed for MIT's [[Project MAC]], a direct descendant of LISP 1.5. which ran on the PDP-10 and [[Multics]] systems.

Since its inception, Lisp was closely connected with the [[artificial intelligence]] (AI) research community, especially on [[PDP-10]]. The 36-bit word size of the [[PDP-6]] and [[PDP-10]] was influenced by the usefulness of having two Lisp [[18-bit]] pointers in one word.<ref>{{cite newsgroup |quote=The PDP-6 project started in early 1963, as a [[24-bit]] machine. It grew to 36 bits for LISP, a design goal. |url=https://groups.google.com/group/alt.folklore.computers/browse_thread/thread/6e5602ce733d0ec/17597705ae289112 |title=The History of TOPS or Life in the Fast ACs |newsgroup=alt.folklore.computers |message-id= [e-mail] |date=18 October 1990 |last=Hurley |first=Peter J.}}</ref>